Compact Optical Waveguide Arrays and Optical Waveguide Spirals
First Claim
Patent Images
1. An apparatus comprising:
- a substrate layer; and
a waveguide bundle including a plurality of waveguides extending across the substrate layer, the plurality of waveguides running parallel to one another, wherein the plurality of waveguides include waveguides having three or more different widths.
2 Assignments
0 Petitions
Accused Products
Abstract
Crosstalk can be reduced in optical waveguide bundles by varying the widths of individual waveguides. Using different width waveguides reduces the growth of crosstalk between the optical waveguides, thereby allowing the waveguides to be placed in closer proximity to increase waveguide density on the chip and/or reduce the routing space required for the waveguide bundle. Moreover, varying the width of a waveguide spiral may reduce crosstalk, which can increase power efficiency when implemented in coiled or folded waveguide thermal optical (TO) devices.
-
Citations
20 Claims
-
1. An apparatus comprising:
-
a substrate layer; and a waveguide bundle including a plurality of waveguides extending across the substrate layer, the plurality of waveguides running parallel to one another, wherein the plurality of waveguides include waveguides having three or more different widths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An apparatus comprising:
-
a substrate layer; and a continuous waveguide structure extending over the substrate layer, wherein a width of the continuous waveguide structure varies over a length of the continuous waveguide structure. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification